Film developing and handling frames



April 17, 1934. A. w. BUCK FILM DEVELOPING AND HANDLiNG FRAMES Filed July 18 1933 Patented Apr. 17, 1934 a 1,955,575

UNITED STATES PATENT ()FFHCE FILM DEVELOPING AND HANDLING FRAMES Arthur W. Buck, St. Louis, Mo., assignor to Buck X-Ograph Company, St. Louis, M0., at corporation of Missouri Application July 18, 1933, Serial No. 681,013

1 Claim. (01. 95-400) This invention relates to frames for supportcircle and then extend toward the adjacent side ing photographic films during the operations of of the frame. Mounted. upon each of these rods developing, fixing, washing and drying the film, 14 is the spring clip designated 15 comprising an and particularly to the means for holding the film under jaw 16 and an upper jaw 17. The under in place Within the frame and keeping the film jaw is flanged at 18, the upper jaw is flanged (ii) in a taut condition. at 19, the two flanges being held together by the One of the objects of the invention is to provide pivot pins or rivets 20.

a film supporting frame of this character in The under jaw 16 is formed at one end with which there are four clips, two engaging the an aperture 21 and the upper jaw 17 is formed 1 lower edge of the film and two engaging the upwith a'tooth 22 engaging in said aperture. The 65 per edge of the film, one pair of these clips being opposite end of the jaw 17 is curved inward at fixed to the frame and the other pair of clips be- 23. The end of the inner jaw 16 remote from ing resiliently mounted on the frame so as to the perforation 21 is increased in width to form draw the film in a direction to hold the film taut. a base 24 and this is bent to form an eye receiv- A further object is to provide improved means ing the extremity of the wire 14 and brazed, 70 for supporting the clips which will prevent the soldered or otherwise connected to this wire. It clips from breaking off under the strain to which will be seen that the tension of the spring wires the clips are subjected. urges the clips upward. a is the spring for the A further object is to provide each of the clips clip.

20 with two jaws, one of these jaws being formed Disposed at the opposite end of the frame 10 75 with a single fiat tooth, the opposite jaw being from the clips 15 are clips 25 which are conperforated to receive this tooth so that when the structed in the same manner as the clips 15 and jaw s a p p the fi it perforates the have the same reference numerals applied therefilm well in from the edge of the film. to. The base 26 of each clip is formed to pro- 25 A u e O j is to 50 o the l as t vide an eye, as previously described, which em- 8 prevent ing of the film. braces or partly embraces the wire and frame Other Objects W appear in the course of the 10 and is soldered, brazed or otherwise rigidly following description. connected thereto. The inner end of the under y invention is illustrated in the accompahyjaw 16 of this clip is connected to the lateral 30 ing drawing, wherein: member of the frame 10 by means of the brace 3 Figure 1 is a face v w f a supporting fr m 27 which may be integral with the under jaw and clip showing the film in place; or attached thereto by any suitable means, this F u 2 is a section 011 the line brace extending laterally outward to the lateral Figure 1; element of the frame 10 and being formed with an Figure 3 is a Section on the line of eye embracing this frame, this eye being solure 1; dered, brazed, welded or otherwise attached to Figure 4 is an enlarged face view of the cont frame, struction shown in Fi I do not wish to be limited to the means Figure 5 is a section 011 the line of whereby the braces 27 are engaged with the 40 we 4. frame 10 nor to the means whereby the clips are 95 Ref r to this drawing. 10 designates a engaged with the frame 10 or with the wire 14. t n frame pr y formed f a single rod These clips might be soldered, Welded, clinched or wire of sufficient strength, which is bent into or riveted t th frame Preferably however, an pp ximat ap d f rm and connected the clips are spot-welded and then soldered.

to a supporting r d 11 which is preferably many- It has been found in actual experience that 1 sided. The e ds of the W frame 10 are D the braces 27 are most important as these braces era Iy formed w y 1 which i h ly emhold the clips 25 rigidly in place against lateral brace the rod 11 The rod 11 is perforated at 13 bending movement and prevent these lower clips at tw p t and extending through th se p from breaking off. This was due to the limited so forations are the ends of spring wires 14. The amount of surface which permits welding or solextremities of these spring wires are inserted dering the base of the clip to the frame. Rough through the perforations 13, then bent over parhandling tends to bend the base of the clip and allel to and upon the rod 11 and soldered, brazed continual straightening causes the base of the or welded to this rod. The wires 14 extend downclip to break in two. By the use of the brace ward from the rod 11, then are bent in a 27, it is impossible for the clip to bend out of H position and inasmuch as this bending is overcome, there is no difficulty in making the clip stay on the frame by either welding or soldering. Because of the fact that the upper clips are mounted upon springs 14, they are not likely to break or become loose.

By the provision of a single tooth 22 on the outer jaws of the clips and the provision of the perforation 21 on the under jaw of each clip, the single tooth perforates the film well inward from the edge of the film. The curved end 23 of the outer jaw of each clip prevents the clip from scratching the face of other films when the film is inserted in the holder and is being developed with other films.

While I have illustrated a specific form of my device which has been found thoroughly satisfactory in actual practice, I do not wish to be limited to this as obviously minor changes might be made without departing from the spirit of the invention as defined in the appended claim. These film holders are not only adapted for use in handling the film while it is being developed, fixed and Washed but are also particularly adapted for use with the photographic film dryer mechanism shown in my Patent No. 1,888,947 granted in November 22, 1932.

I claim:

A film supporting element having angularly related portions, 9. clip including two spring actuated jaws, the base of one jaw being rigidly attached to one portion of the frame, and a brace extending from the other portion of the frame to the extremity of the said jaw.

ARTHUR W. BUCK. 

